Gouldipoma chiapasense Crosse & Fischer 1877
Authors/Creators
Description
Gouldipoma chiapasense (Crosse & Fischer, 1877)
Figure 4 A–L, 12 C
Type material. MNHN-IM-5415, 5416, 5417 (3), syntypes (figs. 6 A–B); JDC, “ holotype ” fide Chevallier (1965), possibly one of the three MNHN syntypes; UF 218272 (1), “ paratype.”
Type locality. “Chiapas, reipublicae Mexicae.”
Type figured. Fischer & Crosse, 1890: pl. 41, figs. 8, 8a, fide Chevallier, 1965: 28.
Chresonymy.
Choanopoma chiapasense Crosse & Fischer, 1877: 362 –363; Fischer & Crosse, 1890: 181, 182–184, pl. 41, figs. 8, 8a–d [includes varieties β and γ]; Bequaert & Clench, 1931: 426; Bequaert & Clench, 1933: 541, 542; Bequaert, 1957: 225; Chevallier, 1965: 28; Watters, 2006: 291 –292.
Tudora (Tudorisca) chiapensis [sic] (Crosse, 1877). Henderson & Bartsch, 1921: 76.
Licina (Choanopomops) chiapasense (Crosse & Fischer, 1877). Baker, 1928: 49.
Choanopoma sumichrasti variety chiapesense Crosse & Fischer, 1877. Solem, 1961: 196 –197, pl. 10, fig. 4, map 1.
Choanopoma (Choanopomops) sumichrasti variety chiapasense Crosse & Fischer, 1877. Solem, 1961: 196 –197, pl. 10, fig. 4, map 1.
Choanopoma sumichrasti Crosse & Fischer, 1874. Chevallier, 1965: 28 [in synonymy of Choanopoma chiapasense Crosse & Fischer, 1877].
Choanopoma (Choanopomops) sumichrasti var. chiapense [sic] Crosse, 1877. Thompson, 1966: 28, fig. 4 [operculum].
Choanopoma sumichrasti var. Thompson, 1966: 28.
Halotudora chiapasensis (Crosse & Fischer, 1877). Watters, 2006: 73, 291–292.
Choanopoma chiapensis [sic] Crosse & Fischer, 1874. Thompson, 2011: 44.
Choanopoma (Choanopomops) chiapasense Crosse & Fischer, 1877. Thompson, 2011: 45, 285, 290.
Distribution and habitat. This species occurs in the Cretaceous limestone highlands from 245–3,800 m elevation in the Sierra Madre de Chiapas and the Chiapas Highlands in Oaxaca and Chiapas states in México into Guatemala. No other annulariid occurs at such high elevations.
Conservation. The majority of the range of the species is unprotected.
Other material (specimens examined: 327). México. Oaxaca State: UF 213703 (32), Lagunas, 259 m; UF 213704 (48), 2.3 km N of Lagunas, 245 m. Chiapas State: UF 218272 (1), Chiapas; UF 19141 (19), 2.3 km S of La Trinitaria, 1,615 m; UF 213687 (6), 6.3 km SSE of La Trinitaria, 1,646 m; UF 213694 (16), 10.6 km SSE of La Trinitaria, 1,372 m; UF 213691 (2), 16.4 km SSE of La Trinitaria, 1,006 m; UF 213688 (28), 20.1 km SE of Comitán on Hwy. 190; UF 213689 (4), 21.9 km SE of Comitán, 1,402 m; UF 213693 (4), 20.9 km NW of Comitán, 1,890 m; UF 213690 (18), UF 213692 (9), 23.5 km NW of Comitán, 1,981 m; UF 19144 (9), 13.8 km E of Chiapa de Corzo, 945 m; UF 19142 (11), UF 29311 (1), 24 km E of Chiapa de Corzo, 1,341 m; UF 213701 (10), 12.9 km N of Tuxtla Gutiérrez, 1,158 m; UF 19143 (20), UF 213698 (6), 13.0 km N of Tuxtla Gutiérrez, 1,128 m; UF 29312 (12), UF 213699 (14), 13.5 km N of Tuxtla Gutiérrez on road to Cañón del Sumidero, 3,800 m; UF 213696 (6), 22.7 km N of Tuxtla Gutiérrez; UF 213700 (2), 11.7 km SE of Tuxtla Gutiérrez, 823 m; UF 213695 (7), 9.8 km SSE of Tuxtla Gutiérrez, 823 m; Grego coll. (3), Los Cotorres, Tuxtla Gutiérrez; UF 213697 (1), Cañón del Sumidero, 1,219 m; UF 19145 (5), 7.2 km N of Bochil, 1,402 m; UF 190634 (15), ravine 18 km SE of Las Rosas, 1,630 m; UF 190645 (22), Chinkultic ruins, 1,340 m; UF 19153 (1), 13.2 km S of Solusuchiapa, 488 m; UF 190551 (23), 4 km SSW of Ogutzil, 1,000 m. Guatemala. Guatemala Department: UF 200652 (2), limestone hill 1 km NNW of Naranjito, 675 m.
Description. Shell conical, moderately high-spired, solid. Smallest adult specimen seen 10.1 mm in length, largest 20.2 mm, average 15.6 mm (decollate). Protoconch usually lost in adult, 1.5 large, rounded, smooth, pale whorls, not clearly demarcated from teleoconch. Teleoconch of 4 – 4.5 rounded whorls. Umbilicus narrow, partially occluded by the outer lip. Spiral sculpture absent, even in the umbilicus. Axial sculpture of numerous (ca. 200/ whorl) fine, densely crowded threads. Suture strongly indented, narrowly channeled. Tufts absent but the axial lamella may render the suture serrate. Aperture oval. Inner lip smooth, exserted, conspicuous. Outer lip lamellate, reflected widely perpendicular to whorl, more or less evenly expanded, somewhat narrower facing umbilicus, auriculate posteriorly, just touching or barely solute from previous whorl. Base color dingy white to tan, syntype purplish-brown. Most specimens lack a well-developed color pattern, but when present it consists of ca. 7 diffuse brown bands, sometimes broken into spots, bands continuous over adapertural face of peristome, visible inside aperture. Aperture white, rarely brown. Operculum multispiral with a calcareous, erect but reflected lamella. Radula and anatomy unknown.
Variation in specimens. Specimens vary in the strength of the color pattern. Most have little or no indication of any pattern but occasional individuals are boldly banded or spotted.
Comparison with other species. This species has been confused with G. sumichrasti but is discerned by the much wider outer lip and the less developed color pattern. It also resembles P. cordovanus but differs in having a multispiral, lamellate operculum.
Remarks. Solem (1961) and Thompson (1966) considered Choanopoma chiapasense a variety of Choanopoma sumichrasti, but by 2011 Thompson recognized it as distinct. The two species seem easily separated and are regarded here as separate. They overlap in the western portion of the range of C. chiapasense.
Original description (translated here from Latin). “Shell rather narrowly perforate, oblong-turret, solid, thinly striated, densely longitudinally impressed, slightly shiny, pale violet-brown; spire quite elevated, apex a good part truncate; suture impressed; 4.5 remaining whorls, last remaining spire small, base nearly flat, pale, nearly white; aperture subcircular, inside pale violet-brown; peristome double: inner narrowly reflexed, shiny, white, outer rather expanded, thinly lamellate, slightly appressed, not shiny, dirty white.—Operculum subcircular, projecting from shell, dirty white, outer margin free, lamella solute, slightly elevated; nucleus subexcentric.” 15 mm.
Etymology. Chiapas + L. - ense, from—from Chiapas.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Crosse & Fischer
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Neotaenioglossa
- Family
- Annulariidae
- Genus
- Gouldipoma
- Species
- chiapasense
- Taxon rank
- species
- Taxonomic concept label
- Gouldipoma chiapasense Crosse, 1877 sec. Watters, 2014
References
- Crosse, H. & Fischer, P. (1877) Diagnosis mollusci novi, reipublicae Mexicanae incolae. Journal de Conchyliologie, 25, 362 - 363.
- Chevallier, H. (1965) Les mollusques de l'expedition du Mexique. Journal de Conchyliologie, 105, 4 - 39.
- Fischer, P. & Crosse, H. (1890) Etudes sur les mollusques terrestres et fluviatiles de Mexique et de Guatemala. Mission Scientifique au Mexique et dans l'Amerique Centrale. Recherches Zoologiques, 2 (2), 177 - 256.
- Bequaert, J. & Clench, W. J. (1931) Three new terrestrial snails from Yucatan. Occasional Papers of the Boston Society of Natural History, 5, 423 - 426.
- Bequaert, J. & Clench, W. J. (1933) The non-marine Mollusca of Yucatan, In: Shattuck, G. C. (Ed.), The peninsula of Yucatan. Medical, biological, meteorological and sociological studies. Carnegie Institute of Washington Publication, pp. 525 - 545. [(431) 576 pp] [plates 68]
- Bequaert, J. (1957) Biological investigations in the Selva Lacandona, Chiapas, Mexico. III. Land and freshwater mollusks of the Selva Lacandona, Chiapas, Mexico. Bulletin of the Museum of Comparative Zoology, 116, 204 - 226.
- Watters. G. T. (2006) The Caribbean landsnail family Annulariidae. A revision of the higher taxa and catalog of the species. Backhuys Publ., Leiden, 584 pp.
- Henderson, J. B. & Bartsch, P. (1921) A classification of the American operculate land mollusks of the family Annulariidae. Proceedings of the U. S. National Museum, 58, 49 - 82. http: // dx. doi. org / 10.5479 / si. 00963801.58 - 2327.49
- Baker, H. B. (1928) Mexican mollusks collected for Dr. Bryant Walker in 1926, I. Occasional Papers of the Museum of Zoology, University of Michigan, 193, 1 - 65.
- Solem, A. (1961) A preliminary review of the pomatiasid land snails of Central America (Mollusca, Prosobranchia). Archiv fur Molluskenkunde, 90 (4 / 6), 191 - 213.
- Crosse, H. & Fischer, P. (1874) Diagnoses molluscorum reipublicae Mexicanae incolarum. Journal de Conchyliologie, 22, 283 - 284.
- Thompson, F. G. (1966) A new pomatiasid from Chiapas, Mexico. Nautilus, 80, 24 - 28.
- Thompson, F. G. (2011) An annotated checklist and bibliography of the land and freshwater snails of Mexico and Central America. Bulletin of the Florida Museum of Natural History, 50 (1), 1 - 299.